中文摘要：

R＆D补贴是政府干预企业技术创新活动的一个重要措施,其具有增加企业R＆D资金,降低企业R＆D成本的作用,本文以深圳中小板上市企业为样本,研究了我国的R＆D补贴是否促进了企业创新绩效的提高,直接补贴和税收优惠的作用效果是否存在差异。实证结果表明,R＆D直接补贴和税收优惠在R＆D投资和专利产出之间起到了正向调节作用,且R＆D直接补贴的正向调节作用更为显著。

英文摘要：

R＆D subsidy is an important measure that government intervenes the technology innovation of enterprise, which has increased the enterprise R＆D funds, reduce R＆D cost, this paper based on listed companies d Shenzhen SME board, studies could R＆D subsidies of our country help improve innovation performance of enterprise？ whether differences exist or not between Direct subsidies and preferential tax？ The empirical results shows that R＆D subsidies played a positive role between R＆D investment and innovation performarne, in addition, the R＆D direct subsidies is stronger than preferential tax.